#51A6EA#51A6EA
#51A6EA is a light, vivid cyan. Relative luminance 0.350; OKLCH L 70.2% C 0.130 H 245.3°. Best body text is #000000 at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #51A6EA |
|---|---|
| RGB | rgb(81, 166, 234) |
| HSL | hsl(207, 78%, 62%) |
| HSV | hsv(207, 65%, 92%) |
| CMYK | cmyk(65.4%, 29.1%, 0%, 8.2%) |
| CIE-LAB | lab(65.72, -4.84, -41.73) |
| CIE-LCH | lch(65.72, 42.01, 263.38°) |
| OKLab | oklab(70.17% -0.0541 -0.1178) |
| OKLCH | oklch(70.17% 0.13 245.3) |
| XYZ | xyz(31.8753, 34.9590, 82.8939) |
| Luminance | 0.3496 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Azure (survey)
#069AF3
ΔE00 4.34
Sky Blue (survey)
#75BBFD
ΔE00 6.42
Dodgerblue
#1E90FF
ΔE00 7.30
Dark Sky Blue
#448EE4
ΔE00 7.85
Cornflowerblue
#6495ED
ΔE00 8.06
Carolina Blue
#8AB8FE
ΔE00 8.85
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#51A6EA #EA9551
analogous
#51EAE2 #51A6EA #515AEA
triadic
#51A6EA #EA51A6 #A6EA51
tetradic
#51A6EA #E251EA #EA9551 #5AEA51
square
#51A6EA #E251EA #EA9551 #5AEA51
split-complementary
#51A6EA #EA515A #EAE251
monochromatic
#1569AC #1B8AE2 #51A6EA #88C2F1 #BEDEF7
Accessibility & contrast
On white
2.63
#51A6EA on #FFFFFF
AA ✗AA large ✗AAA ✗
On black
7.99
#51A6EA on #000000
AA ✓AA large ✓AAA ✓
Best text color
#000000 on #51A6EA
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##51A6EA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##51A6EA | 1.00 | 2.63 | 7.99 | 7.99 |
| #FFFFFF | 2.63 | 1.00 | 21.00 | 21.00 |
| #000000 | 7.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 7.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#88A8ED
Deuteranopia (green-blind)
#7399E9
Tritanopia (blue-blind)
#00B6BE
Achromatopsia (no color)
#A0A0A0
Design tokens & code
CSS
--color: #51a6ea; /* rgb */ color: rgb(81, 166, 234); /* oklch */ color: oklch(70.2% 0.130 245.3);
Tailwind
colors: {
custom: {
50: '#90c0f1',
500: '#51a6ea',
950: '#000000',
},
}SCSS
$custom: #51a6ea; $custom-light: #90c0f1; $custom-dark: #000000;
JSON
{
"hex": "#51a6ea",
"rgb": {
"r": 81,
"g": 166,
"b": 234
},
"hsl": {
"h": 206.667,
"s": 78.462,
"l": 61.765
},
"oklch": {
"l": 0.70167,
"c": 0.12962,
"h": 245.3
},
"luminance": 0.34962
}Semantic roles & 50–950 ramp
primary
#51A6EA
secondary
#E8C8AF
accent
#670BDB
background
#F9FBFE
surface
#F2F7FD
border
#CCD0D5
text
#0E1216
muted
#7E8184